main {
    background: #FAFAFA;
}

main .banner {
    height: 187px;
    position: relative;
    overflow: hidden;
}

main .banner .banner_bg {
    width: 150%;
    height: 145px;
    position: absolute;
    left: -25%;
    background: red;
    border-bottom-left-radius: 100%;
    border-bottom-right-radius: 100%;
}

main .banner ul {
    list-style: none;
}

main .banner ul li {
    width: 100%;
    height: 187px;
    position: absolute;
    left: 0;
    top: 0;
    padding-left: 3.3%;
    padding-right: 3.3%;
}

main .banner ul li:nth-child(2) {
    left: 100%;
}

main .banner ul li:nth-child(3) {
    left: 200%;
}

main .banner ul li a {
    display: block;
    border-radius: 0.35em;
}

main .banner ul li a img {
    width: 100%;
    height: 187px;
    border-radius: 1em;
}

main nav a {
    display: block;
    float: left;
    width: 20%;
    text-align: center;
    font-size: 12px;
    cursor: pointer;
}

main nav a img {
    width: 40px;
    height: 40px;
    margin-top: 10px;
    margin-bottom: 6px;
}

main nav a span {
    display: block;
}

main nav {
    position: relative;
    height: 160px;
    overflow: hidden;
}
main nav .first-nav {
    width: 100%;
    position: absolute;
    left: -100%;
    top: 0;
}
main nav .second-nav {
    width: 100%;
    position: absolute;
    left: 0;
    top: 0;
}

main .new {
    margin: 10px;
    overflow: hidden;
}

main .new a {
    float: left;
    width: 50%;
}

main .new a img {
    width: 100%;
}
